The line comes from LMFAO's 2011 smash 'Party Rock Anthem', built around the Melbourne shuffle dance craze, where dancers chant 'Everyday I'm shufflin' over a pounding electro beat. The song dominated charts worldwide and its video, packed with shuffling dancers, became one of the most-watched clips of the decade. As the track aged into nostalgia, the chant lived on as a meme, dropped under videos of dancing, grinding and repetitive tasks to turn monotony into a joke.